diff options
Diffstat (limited to 'arch/arm/cpu/armv7/mx7/soc.c')
| -rw-r--r-- | arch/arm/cpu/armv7/mx7/soc.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx7/soc.c b/arch/arm/cpu/armv7/mx7/soc.c index f150569..829e30c 100644 --- a/arch/arm/cpu/armv7/mx7/soc.c +++ b/arch/arm/cpu/armv7/mx7/soc.c @@ -356,6 +356,24 @@ void boot_mode_apply(uint32_t cfg_val) writel(reg, &src_reg->gpr10); } +void set_wdog_reset(struct wdog_regs *wdog) +{ + u32 reg = readw(&wdog->wcr); + /* + * Output WDOG_B signal to reset external pmic or POR_B decided by + * the board desgin. Without external reset, the peripherals/DDR/ + * PMIC are not reset, that may cause system working abnormal. + */ + reg = readw(&wdog->wcr); + reg |= 1 << 3; + /* + * WDZST bit is write-once only bit. Align this bit in kernel, + * otherwise kernel code will have no chance to set this bit. + */ + reg |= 1 << 0; + writew(reg, &wdog->wcr); +} + /* * cfg_val will be used for * Boot_cfg4[7:0]:Boot_cfg3[7:0]:Boot_cfg2[7:0]:Boot_cfg1[7:0] |